Granite is a felsic or acidic rock. A vesicle is a cavity formed by expanding gas during the cooling of an extrusive igneous rock. A good example of vesicles are those found in pumice. If a vesicle is filled in by a secondary mineral it is described as an amygdale.
InformAfrica â Kisii County is a district in the Nyanza Province of southwestern Kenya, and is mostly inhabited by the Gusii tribe or Kisii people. Kisii is the capital town of Kisii county. As of 2010, Kisii county has 7 constituencies which are: Bobasi, Bonchari, Bomachoge, Kitutu Chache, Nyaribari Chache, Nyaribari Masaba, and South Mugirango.
Overview of Turkana County. Situated in northern Kenya, about 700km from Nairobi, Turkana is the second largest county in Kenya covering 68,680 square kilometres. Turkana shares its borders with four counties; Marsabit to the east, Samburu to the south-east, Baringo and West Pokot to the south-west.